vim replset.yaml
kubectl create -f replset.yaml
kubectl get pod
kubectl delete pod nginx1 nginx12 web2
clear
kubectl get pod
clear
kubectl get rs
kubectl get pod
kubectl delete pod frontend-qmxml frontend-s4kbp
kubectl get pod
vim replset.yaml
kubectl apply -f replset.yaml
clear
kubectl get pod
kubectl scale --replicas=1 rs/frontend
kubectl get pod
kubectl edit rs frontend
kubectl get pod
kubectl delete rs frontend
kubectl get pod